What’s Vulnerable › Vulnerabilities

CVE-2025-38082: gpio: virtuser: fix potential out-of-bound write

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-07-30
• Weakness: CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: gpio: virtuser: fix potential out-of-bound write If the caller wrote more characters, count is truncated to the max available space in "simple_write_to_buffer". Check that the input size does not exceed the buffer size. Write a zero termination afterwards.

Affected products

• Linux kernel: from 6.11 before 6.12.32; from 6.13 before 6.14.10; 6.15-rc1, 6.15-rc2, 6.15-rc3, 6.15-rc4, 6.15-rc5, 6.15-rc6 — fixed in 6.12.32, 6.14.10

How to fix

Upgrade to a fixed version: Linux kernel 6.12.32, 6.14.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/7118be7c6072f40391923543fdd1563b8d56377c
• https://git.kernel.org/stable/c/afe090366f470f77e140ff3407db813f57852c04
• https://git.kernel.org/stable/c/b96feaaa0fda1e3871b438143c3446954b32d3a7

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